Shihlin electric SDP Series, Manual

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419
(2) Digital IO monitor(Read-only)
(a) IO pin status
Communication
address
Content
Data
length
0x0204 To show the ON/OFF status of DI pin, the pin assignment
is as follows 1word
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Bit number
DI8
DI7 DI6 DI5 DI4 DI3 DI2 DI1 Pin number
Bit15 Bit14 Bit13 Bit12 Bit11 Bit10 Bit9 Bit8 Bit number
DI12 DI11 DI10 DI9 Pin number
Note: the status of this digital IO pin is the integrated with both input contact (DI) source
control switch (PD16) and the communication control digital input contact status
(PD25), below example will further illustrate this:
The external hardware terminals DI12~DI1 status are represented by bit11~bit0, The
following use binary value to illustrate:
DI contact source control switch (PD16): 111111000000.
The state of the external hardware terminal: 111100001111 (from left to right are DI12~DI1,
1 means ON, 0 means OFF).
Communication control DI contact status (PD25): 111000111000.
In summary, the status of DI12~DI7 (communication address 0x0204) is determined by
the communication, and DI6~DI1 is determined by the status of the external hardware
terminal.
Therefore, the status of DI terminal (communication address 0x0204) is represented as
111000 001111.
Communication
address
Content Data
length
0x0205 To show the ON/OFF status of DO pin, the pin assignment
is as follows 1word
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Bit number
DO6 DO5 DO4 DO3 DO2 DO1 Pin number